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DogOnPorch

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13 minutes ago, DogOnPorch said:

Celestia attempt to display Sagittarius A*...it's one of those OMG, it's full of stars things up close. Doubt one could get a good night's sleep near the core...mind the X-Rays.

I read something new about Cygnus X-1 just the other day:

Quote

One of the biggest and first known black holes in the Milky Way galaxy is more massive than astronomers thought, a team of scientists announced on Thursday. The finding throws a wrench into long-held models of how massive stars evolve on the way to the ultimate doom.

Famous Black Hole Gets a Massive Update

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15 minutes ago, OftenWrong said:

I read something new about Cygnus X-1 just the other day:

Famous Black Hole Gets a Massive Update

 

That's interesting. The twenty Solar mass limit for collapsed stars ---> black hole seemed like one of those rules that was bound to be broken. Good looking black holes in Celestia...

Cygnux X-1 in Celestia

http://celestiamotherlode.net/catalog/fictional.html#1800

fictional_Black_Hole_Cygnus_X1_1__Cham.thumb.jpg.4fd5a4d334aa911be7ee2a14ee9cc746.jpg

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A Celestia aside....

If you get the large star database and what-not...you can drift along Star Trek-like at about 1 ly per second and watch the stars streak by. Even at a blinding speed like that, if you turn and lock onto M31 or something similar, you get a sobering reality check as to HOW far 2,000,000 light years away is...two million seconds in this case. Over 500 hours...

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